Bar stool



FIG. 1 is a rear perspective view of a chair showing my new design;

FIG. 2 is a front view thereof:

FIG. 3 is a right side view thereof, the left side being a mirror image;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof; and

FIG. 6 is a bottom view thereof.

FIG. 7 is a sectional view, enlarged for clarity, through the section 7-7 of FIG. 2; and,

FIG. 8 is a sectional view, enlarged for clarity, through the section 8-8 of FIG. 3.

The broken line depiction of environmental structure is provided for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a bar stool, as shown and described. 